One API for
every AI model.
Recent Requests
auto-refreshingToday
Requests / 24h
Trusted by engineers at
Everything you need.
Nothing you don't.
Built for teams that ship fast and break nothing.
Universal AI API
One endpoint for every model. Switch between GPT-4o, Claude, Gemini, Llama, and 47 others by changing a single parameter.
Edge Caching
Semantic similarity caching reduces costs by up to 80% and cuts latency to single digits for repeat queries.
TypeScript-First SDK
Full type inference, zero any. Your IDE knows exactly what every model returns before you even run it.
Real-time Observability
Token usage, latency histograms, error rates, and cost per request - all visible in your dashboard the moment they happen.
Global Edge Network
Routed through 32 data centers. Your users get the nearest inference node automatically.
Enterprise Security
SOC 2 Type II, HIPAA-ready, data residency controls, and audit logs for every API call.
From zero to
production fast.
Three steps. No surprises.
Install in 30 seconds
2 min setupAdd the SDK to your project with one command. Zero config, zero boilerplate. Works with Node, Deno, Bun, and the Edge.
Pick your models
Zero vendor lock-inBrowse 50+ models from OpenAI, Anthropic, Google, Meta, and Mistral. Switch between them in a single line - your code never changes.
Ship with confidence
Production readyDeploy to production knowing your API calls are cached, rate-limited, retried automatically, and visible in your Synthr dashboard.
Simple, transparent pricing.
No surprises. No hidden fees. Cancel anytime.
Side projects and learning
- 1,000 API calls / month
- 10 models available
- Community support
- Basic analytics
- SDK access
Teams shipping to production
- 100,000 API calls / month
- All 50+ models
- Edge caching included
- Priority email support
- Advanced analytics
- Webhooks & events
- Custom rate limits
High-volume production apps
- Unlimited API calls
- All 50+ models
- Dedicated edge nodes
- SLA guarantee
- Slack support channel
- Custom model fine-tuning
- HIPAA & SOC 2 compliant
- Data residency controls
Need custom limits or on-prem? Talk to our team
Loved by developers
shipping real products.
"We cut our AI infra costs by 71% in the first week. The semantic caching alone paid for three years of Pro subscriptions."
Marcus Chen
CTO at Forma
"Switched from direct OpenAI calls to Synthr in an afternoon. The TypeScript types are genuinely incredible."
Priya Sharma
Senior Engineer at Atmos
"The observability dashboard is what sold me. I finally know what's happening inside my AI features."
Tom Okafor
Founder at Memo AI
"A/B testing GPT-4o vs Claude 3.5 Sonnet on the same prompt took 4 lines of code. Would've taken days otherwise."
Sofia Reyes
ML Engineer at Pixel Labs
"We had an OpenAI outage and Synthr automatically failed over to Claude without a single user complaint."
James Park
Platform Lead at Vessel
"Best developer experience I've had with any API in years. The docs are clear and the SDK just makes sense."
Aisha Mohammed
Indie developer
Questions
we get asked.
Still have questions? Talk to us
Get started today
Build smarter products.
Ship in minutes.
No infrastructure to provision. No model contracts. No usage minimums. One key and every AI model ever made.
Free tier includes 1,000 calls/month. No credit card required.